Lavatory cabinet



FIG. 1 is a perspective view of a lavatory cabinet showing my new design;

FIG. 2 is a front elevational view thereof; and,

FIG. 3 is a side elevational view of one side, the opposite side elevational view being a mirror image thereof.

The dark wavy line denotes a boundary of the claim and forms no part of the claimed design. The broken line showings of the circles in the top surface are for illustrative purposes only and form no part of the claimed design. 

The ornamental design for a lavatory cabinet, as shown and described. 